Finding the Fourth Proportional to 216,867.01, 299,276.43 and 121,373.70
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Solution
The fourth proportional to 216,867.01, 299,276.43 and 121,373.70 is: 167,495.68
Step by Step Solution
- Step 1: Write the proportion equation
216,867.01 : 299,276.43 = 121,373.70 : x - Step 2: Convert to fraction form
216,867.01/299,276.43 = 121,373.70/x - Step 3: Cross multiply
216,867.01x = 299,276.43 × 121,373.70 - Step 4: Simplify right side
216,867.01x = 36,324,287,631.89 - Step 5: Solve for x
x = 36,324,287,631.89/216,867.01 - Step 6: Final answer
x = 167,495.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.